Machine for preparing strips of carpet for making rugs.



No 7|2.4so. Patented Oct. 28, I902.

H. LIEBMAN. v MACHINE FOR PREPARING STRIPS OF OARPET FOR MAKING BUGS.

(Application filed m 19, 1902. (No Model.) ZSheotsT Sheet. I.

INVENTO% rum. 712,460.

Patented Oct. 23, 1902. P H. LIEBMAN. MACHINE FOR PREPARING STRIPS 0FCARPET FOR MAKING BUG-S.

(Application filed Mar 19, 1902.)

2 Shaats$'h eet 2.

(No Model.)

; IN'VE HIS ATTQRNgm S.

section of the guides seated between the shafts UN ITED STATES A PATENTOFFICE.

HERMAN LIEB MAN, OF CHICAGO, ILLINOIS, A SSIGNOR TO AUGUSTE E. OLSON, OFCHICAGO, ILLINOIS.

MACHINE FOR PREPARING STRIPS 0F CARPET FOR MAKING HUGS.

SPECIFICATION forming part of Letters Patent No. 712,460, dated October28, 1902. Application filed March 19, 1902. Serial No. 98,945. (NomodelJ To all whom, it may concern:

Be it known that I, HERMANLIEBMAMEL cit-izen of the United States ofAmerica,and a resident of Chicago, in the county of Cook and State ofIllinois, have invented certain new and useful Improvements in Machinesfor Preparing Strips of Carpet for Making Rugs, of which the followingis a specification.

The main object of my invention is to provide an improved machine bymeans of which pieces of carpet may be cut into narrow strips and frayedalong the edges of said strips. A further object is to provide improvedmeans for thoroughly cleaning said strips, so that same will be readyfor use in the manufacture of rugs. I accomplish these objects by thedevice shown in the accompanying drawings, in which- Figure 1"is a topplan (if a machine con}.

structed accordingto my invention. Fig. 2 is a longitudinal section ofthe same along the line 2 20f Fig. 1. Fig. 3 is an enlarged section ofthe shaft 3. Fig. 4 is a longitudinal section of the same, partly brokenaway. Fig. 5 is an elevation, partly broken away, of the roller 4. Fig.16 is a transverse section of the shaft 5. Fig. 7 is an elevation of thesame, partly broken away. Fig. 8 is an enlarged 3 and 5, portions ofsaid shafts and the surrounding frame being shown partly broken away. ofthe guide shown in Fig. 8.

The guides shown in Fig. 8 are omitted from Figs. 1 and 2 for the sakeof clearness.

The device shown is constructed as follows: The frame 6 is provided witha horizontal table 7, extending across the top of said frame for abouthalf its length. Mounted above the table 7, in parallel relation andparallel to said frame.

"n'ally of the shaft 5. .on the shaft 5 is so arranged that its centralFig. 9 is a section of a modified form each side of the frame anddirectly beneath each of the arms 13 a screw-threaded socketpiece 14 isscrewed to a cross-piece 15 of said Each of the socket-pieces 14 carriesa vertical screw 16, which bears upon the corresponding arm 13, thusproviding vertical adjustment for the roller 12.

Keyed to the shaft 3 is a series of circular cutting-knives ll, equallyspaced and separated by sleeves 17. The knives 11 are held in placelongitudinally of the shaft 3 by means of a nut 18 at each end, asindicated in Fig. 4. The shaft 5 is provided with a corresponding seriesof cutters 19 and secured to the shaft in a similar manner. Theperiphery of each of the cutters 1 9 is provided with a series ofcutting edges 20, disposed longitudi- Each of the cutters 19 plane is inexact alinement with the plane of the cutting edge of the correspondingknife on the shaft 3. Between the shafts 3 and 5 and extendingtransversely to said. shafts are a series of guides 21, which preventlateral displacement of strips of fabric while passing between saidknives and cutters. Resting lightly above the guides 21 is an upperguide 22, which is vertically movable. The guide 22 is urged downwardly.by means of light springs 23, which bear upon the crosspiece 24. Thecross-piece 24is secured at its ends to the castings 8 and 9. Itslocation is shown is Figs. 2 and 8, but it is omitted in Fig. l for thesake of clearness. It is desirable that the guide 22 be as close aspossible to the knives 11, and forthis reason the edge adjacent to suchknives is provided with a series of slots 25, corresponding in locationto the knives 11, so that the upward movement of the guide 22 will notbe stopped by the knives 11. In the modified form of the guide 22 itslower surface is provided with a plurality of light fiat springs 43, oneof which extends along each space between the guides 21. These springsare extended sufficiently to keep the strips of carpet in contact withthe table 7 until delivered to the cutters 19.

The shaft 5 and the roller 4 are connected by the gears 26 and 27 androtate with equal velocities. The gears 28 and 29 connect the roller 4with the shaft 3, the gear 29 being IOC somewhat smaller than the gear28, so that the peripheral velocity of the knives 11 is greater thanthat of the roller 4. The roller 12 is an idler and rotates throughcontact with the cutters 19. The table 7 is continued on one side of themachine in the form of a flap 30, which is preferablyprovided withhinges, so that it maybe folded down and out of the way. The casting 9is provided with a slot 31, extending along the table 7 and between thebearings of the shaft 3 and the roller 4. The purpose of this slot willbe hereinafter described.

In advance of the table '7 isa chute 32,which is pivoted at one end tothe shaft 33 near the end of the table 7. The other end of the chute 32is suspended from the frame 6 by means of springs 34. The chute 32gradually enlarges toward its delivery end 35. The top and bottom of thechute 32 are preferably made of wire-netting 36. The shaft 37 isjournaled to the frame 6 above the chute 32 and has secured theretoapair of cams 38, by means of which the chute 32 is driven downwardly, asindicated by the dotted lines 32. As soon as released by the cam 38 thechute 32 is returned to its uppermost position by the springs 34. Upwardmovement of the chute 32 is limited by the bar 39 of thesupporting-frame 6. Power is supplied to the machine by means of a beltpassing over the pulley 40, which is secured to the shaft 37. The shaft37 and the roller 4 are connected by means of the belt 11. The table 7isprovided with a cleat 42, which serves as a guide to the edge of a pieceof carpet while same is being fed to the cutting-knives.

The bearin gs in the casting 8 are preferably made in halves, so thatthe shafts 3 and 5 may be readly removed.

The operation of the device shown is as follows: A piece of carpet islaid upon the table 7, with one edge in contact with the guide 42, andis moved toward the-knives 11, where it is cut into strips by thecombined action of the knives 11 and the roller 4. The strips thusformed pass between the guides 21 and are prevented from leaving suchguides by the guide 22 and are delivered between the roller 12 and thecutters 19. Each of the cutters 19 is centrally located with respect tothe cut made by the corresponding knife 11, and therefore each strip ofcarpet after leaving the cutters 19 will have a series of transversecuts along each of its edges. The strips continue to move along thetable 7 and enter the chute 32, where they are violently agitated by thereciprocation of the chute 32. This agitation serves to fray the edgesof said strips, and any dirt that is contained in the carpet is shakenout and falls through the wire-netting 36. The carpet is delivered atthe end 35 of the chute, the same being cut,

frayed, and cleaned ready for use in the manufacture of rugs. When it isdesired to cut strips from a piece of carpet in the direction of thewidth of the same or in cases where pieces of carpet are of greaterlength than the length of the cutting-rollers, one edge of the carpet isplaced against the guide 42 and the piece is fed along the table 7, asbefore. It will be seen that the part of the carpet which has been cutinto strips will continue along the table and into the chute 32, asbefore, while the uncut part will extend into the slot 31 of the casting9 and will pass along the extension 30 at the left of the cuttingmechanism. By this arrangement the necessity of cutting the carpet intowidths equal to the length of the cutting-rollers before feeding same tothe machine is avoided. When strips are cut crosswise from a roll ofcarpet, the a roll is fed along the extension 30, a portion of thecarpet equal in length to the length of the cutting-rollers having beenpreviously unwound. This operation is repeated until the entire roll hasbeen cut up.

It will be seen that numerous details of the device shown may be alteredwithout departing from the spirit of my invention. I therefore do notconfine myself to such details except as hereinafter limited in theclaims.

What I claim as my invention, and desire to secure by Letters Patent,is-

1. The combination of a frame having a suitable platform for supportingpieces of carpet, a series of rotating knives journaled in said frameand adapted to out said carpet into strips, a corresponding series ofrotating cutters journaled in said frame on axes disposed in parallelrelation to the axes of said knives, eachof said cutters being opposedto 7 one of said knives and adapted to make a series of short cutsextending transversely of the cut made by its respective knife, a seriesof guides secured to said platform between said knives and cutters, eachof said guides being in alinement with one of said knives and beingadapted to engage the adjacent side edges of the strip of carpet andprevent the lateral displacement of said strips in passing between saidknives and cutters; yielding means for preventing said strips fromleaving said guides; and suitable mechanism for driving said knives andcutters and feeding said carpet.

2. In a carpet-cutting machine, the combination of a frame, having asuitable platform for supporting a piece of carpet, a series ofdescribed.

3. In a carpet-cutting machine, the combination of a frame, having asuitable platform for supporting a piece of carpet, a series of rotatingknives journaled in said frame and adapted to out said carpet intostrips, a series of rotating cutters journaled in said frame and adaptedto fray the edges of said strips, a reciprocating chute mounted in saidframe adapted to receive said strips and cause same to beat againstopposite Walls of said chute d uring their passage through said chute,thereby loosening any adhering dirt from same, and suitable mechanismfor simultaneously operating said knives and cutters, and reciprocatingsaid chute.

4. In a carpet-cutting machine, the combination of a frame, havingasuitable platform for supporting a piece of carpet, a series ofrotating knives journaled in said frame and adapted to cut said carpetinto strips, a series of rotating cutters journaled in said frame andadapted toifray the edges of said strips, a chute rectangular incross-section and open at its ends and suitably disposed to receive saidstrips and permit same to pass longitudinally through same; a screenforming the bottom of said chute; suitable means for agitating saidchute and causing said stripsto beat against the top and bottom of thechute, thereby loosening and removing any adhering dirt or cuttings fromsaid strips; and suitable mechanism for operatingsaid knives andcutters.

5. In a carpet-cutting machine, the combination of a frame, having asuitable platform for supporting a piece of carpet, a series of rotatingknives journaled in said frame and adapted to out said carpet intostrips, a series of rotating cutters journaled in said frame and adaptedto fray the edges of said strips, a pair of screens secured together toform a chute open at its ends, said screens being suitably disposed toreceive said strips between them; suitable means for agitating saidchute and causing the strips to beat between said screens, therebyloosening and removing the adhering dirt or cuttings from said strips;and suitable mechanism for operating said knives and cutters.

Signed at Chicago this 12th day of March, 1902.

- HERMAN LIEBMAN. Vitnesses:

WM, R. RUMMLER,

EUGENE A. RUMMLER.

